thiophene-3-boronic acid pinacol ester

Also known as: 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)thiophene, 4,4,5,5-tetramethyl-2-(3-thienyl)-1,3,2-dioxaborolane, 2-(thiophen-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane, 3-thiopheneboronic acid pinacol ester, 4,4,5,5-tetramethyl-2-thiophen-3-yl-1,3,2-dioxaborolane, MFCD05663893

thiophene-3-boronic acid pinacol ester (CAS 214360-70-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H15BO2S and a molecular weight of 210.101 g/mol. Key properties include a boiling point of 286.5±13.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 127.1±19.8 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 214360-70-0
Jingsj CID: J-1503936-8
Molecular Formula: C₁₀H₁₅BO₂S
Molecular Weight: 210.101 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	286.5±13.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	127.1±19.8 °C
Exact Mass	210.088577
PSA	46.70000
LogP	2.04730
Vapor Pressure	0.0±0.6 mmHg at 25°C
Refractive Index	1.501

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of thiophene-3-boronic acid pinacol ester?

The CAS number of thiophene-3-boronic acid pinacol ester is 214360-70-0.

What are the molecular formula and molecular weight of thiophene-3-boronic acid pinacol ester?

thiophene-3-boronic acid pinacol ester has molecular formula C10H15BO2S and molecular weight 210.101 g/mol.

What are the upstream and downstream products of thiophene-3-boronic acid pinacol ester?

For thiophene-3-boronic acid pinacol ester, Upstream Products: 3-Chlorothiophene, Bis(pinacolato)diboron, 3-Bromothiophene; Downstream Products: 2-(2,5-Dibromothiophen-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "thiophene-3-boronic acid pinacol ester (CAS 214360-70-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1503936-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.